idealism

noun

ide·​al·​ism ī-ˈdē-(ə-)ˌliz-əm 

ˈī-(ˌ)dē-

1

a

: the practice of forming ideals or living under their influence

b

: something that is idealized

2

a(1)

: a theory that ultimate reality lies in a realm transcending phenomena

(2)

: a theory that the essential nature of reality lies in consciousness or reason

b(1)

: a theory that only the perceptible is real

(2)

: a theory that only mental states or entities are knowable

3

: literary or artistic theory or practice that affirms the preeminent value of imagination as compared with faithful copying of nature compare realism

Examples of idealism in a Sentence

Recent Examples on the Web

And its yearning idealism is a good antidote to the current prevailing cynicism. —ArsTechnica, 2 Apr. 2025

For all its idealism and command of several languages, Kraftwerk recognized Atomic Age inventions had their own negatives. —Bob Gendron, Chicago Tribune, 30 Mar. 2025

The bedrock of net zero policy rests economic pragmatism, not idealism. —David Carlin, Forbes, 24 Mar. 2025

Neptune will eventually enter this area of your chart, adding a sense of idealism and receptivity to your professional life. —Valerie Mesa, People.com, 20 Mar. 2025

Word History

First Known Use

circa 1743, in the meaning defined at sense 2a(1)

Rhymes for idealism

• surrealism
• neorealism

Kids Definition

idealism

noun

ide·​al·​ism ī-ˈdē-(ə-)ˌliz-əm 

ˈī-(ˌ)dē-

: the practice of forming ideals or living under their influence

idealist

-(ə-)ləst

noun

idealistic

(ˌ)ī-ˌdē-(ə-)ˈlis-tik

ˌī-dē-

adjective

idealistically

-ti-k(ə-)lē

adverb